JPH0517614B2 - - Google Patents

Info

Publication number
JPH0517614B2
JPH0517614B2 JP58063880A JP6388083A JPH0517614B2 JP H0517614 B2 JPH0517614 B2 JP H0517614B2 JP 58063880 A JP58063880 A JP 58063880A JP 6388083 A JP6388083 A JP 6388083A JP H0517614 B2 JPH0517614 B2 JP H0517614B2
Authority
JP
Japan
Prior art keywords
coil
tracking
lens barrel
magnet
objective lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP58063880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59188849A (ja
Inventor
Kanji Nishii
Akifumi Nakada
Akihiro Sakaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6388083A priority Critical patent/JPS59188849A/ja
Publication of JPS59188849A publication Critical patent/JPS59188849A/ja
Publication of JPH0517614B2 publication Critical patent/JPH0517614B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP6388083A 1983-04-12 1983-04-12 光ピツクアツプ装置 Granted JPS59188849A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6388083A JPS59188849A (ja) 1983-04-12 1983-04-12 光ピツクアツプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6388083A JPS59188849A (ja) 1983-04-12 1983-04-12 光ピツクアツプ装置

Publications (2)

Publication Number Publication Date
JPS59188849A JPS59188849A (ja) 1984-10-26
JPH0517614B2 true JPH0517614B2 (US20100056889A1-20100304-C00004.png) 1993-03-09

Family

ID=13242043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6388083A Granted JPS59188849A (ja) 1983-04-12 1983-04-12 光ピツクアツプ装置

Country Status (1)

Country Link
JP (1) JPS59188849A (US20100056889A1-20100304-C00004.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195337A (ja) * 1983-04-20 1984-11-06 Matsushita Electric Ind Co Ltd 光ピックアップ装置
JPS63138623U (US20100056889A1-20100304-C00004.png) * 1987-02-27 1988-09-13

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792441A (en) * 1980-11-28 1982-06-09 Hitachi Ltd Three-dimensional driving body supporting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792441A (en) * 1980-11-28 1982-06-09 Hitachi Ltd Three-dimensional driving body supporting device

Also Published As

Publication number Publication date
JPS59188849A (ja) 1984-10-26

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